DERIVATIVES AND RISK MANAGEMENT (Effective Portion of Derivatives Designated as Cash Flow Hedging Instruments Recognized in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI	$ 254	$ (16)	$ 696	$ 469
Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI	(9)	(56)	208	(280)
Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI	$ 263	$ 40	$ 488	$ 749